US2742142A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable cement extruders
Assignee: United Shoe Machinery Corp
•
Filing: 1951-12-08
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Granted: 1956-04-17
•
Expires: 1971-12-08
Abstract
No abstract record available.
Inventors
- 👤 Hans C Paulsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:54
CPC Classifications
B; B05; B05C; B05C17/00; B05C17/005; B05C17/00523; B05C17/00526; B05C17/0053; B05C17/00536; B29; B29B; B29B13/00; B29B13/02; B29B13/022; Y; Y10; Y10S; Y10S264/00; Y10S264/72; Y10S264/75
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US619681A
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US1056497A
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US1449517A
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US1993709A
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US2254521A
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US2438525A
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US2454875A
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US2432428A
Cited
US2604064A
Cited
GB670133A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-17 | 1959-10-17 | 1960-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-17 | 1963-10-17 | 1964-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-17 | 1967-10-17 | 1968-04-17 | $7700.00 | Window Closed / Lapsed |